Grooved holder for spinning ring



A. J. WAYSON May 2, W67

GROOVED HOLDER FOR SPINNING RING Filed Oct. 22, 1965 United States Patent O 3,316,704 GROOVED HOLDER FOR SPINNING RING Andrew J. Wayson, Needham, Mass., assignor to Merriman Inc., a corporation of Massachusetts Filed Oct. 22, 1965, Ser. No. 500,523 2 Claims. (Cl. 57120) This invention relates to the tex-tile industry and is particularly concerned with means for lubricating the surface of spinning rings to facilitate movement of the traveler thereabout.

When reference hereinafter it will be understood that it rings.

The invention hereinafter disclosed is concerned with a new and novel means for conveying a lubricant, usually oil, from a lubricant source to an available surface of a spinning ring of porous character. Rigid metal spinning rings made of compressed and sintered powdered metal are well known in the industry. Various means have been shown in the prior patented art for delivering oil to the ring so that it may be readily absorbed and transmitted by capillary action to 'all exposed ring surfaces.

In the conventional situation, the ring holder is of the split type, permitting it to be spread apart so that the ring may be dropped into position. The ring is ordinarily grooved about its outer surface and the holder clamps into the groove. The ring customarily has included a secondary deeper groove in which a wick is placed with the ends -of the wick leading to a source of oil. The oil, moving by capillary action, travels about the wick delivering oil to the entire circumference of the groove, whence it flows through the ring to the exposed surfaces to provide lubrication for the traveler.

The holder will ordinarily last indefinitely, but the ring, being engaged by the traveler spinning thcreabout at 500G-10000 r.p.m., has a limited life. Consequently, since it is necessary periodically to replace the ring, it is desirable that the ring be made as cheaply as possible. If the cost of the ring could be appreciably reduced by virtue of an improved holder construction, such change would be considered desirable.

Accordingly, in the present invention the holder is constructed in a novel manner permitting cooperation with a ring of simplified character in a manner that results in delivery of oil to the circumference of the ring fully as effectively as prior constructions. In the long run, the somewhat lower cost of each ring more than compensates for a slightly higher initial cost of the holder which, as above stated, has an indefinite life. f

These and other objects of the invention will become more apparent as the description proceeds with the aid of the accompanying drawings in which:

FIG. 1 is a plan view of a porous metal spinning ring mounted in a split holder which incorporates the invention;

FIG. 2 is a vertical section taken on the line 2 2 of FIG. l showing a silo-type oil reservoir from which the oil flows to the ring;

FIG. 3 is a side elevation of the ring per se;

FIG. 4 is an enlarged view of the righthand portion of FIG. 2;

FIG. 5 is a vertical section taken on the line FIG, 4;

FIG. `6 is a vertical section taken on the line 6-6 of FIG. 7; and

FIG. 7 is an elevational view taken on the line 7-7 of FIG. 1 with the ring broken away in part to show the holder and to illustrate the means for blocking the escape of oil at the ends of the holder.

is made to a spinning ring, also encompasses twisting ice Referring now to FIG. l, a spinning ring of the porous metal type is indicated at 2. This ring is of conventional construction as to materials and method of manufacture. As can be seen in FIG. 2, the ring 2 has a shallow circumferential groove 4 that extends about its entire outer surface., The walls of the groove are designated 6, 7 and 8. The vertical wall 6 is of substantial vertical dimension so as to provide both a good gripping surface for the holder and a rela-tively large area to receive the oil that will be transmitted thereto from the oil supply.

Returning to FIG. l, a typical split holder is shown at 9, with the split being at 10. Upon removal of the screw 12, the ends 14 and 16 may be separated sufficiently t0 permit insertion or removal of the ring 2.

The ears 18 and 20 serve as means for securing the holder to the ring `rail in conventional manner.

As shown in FIGS. 1 and 2, a horizontal passageway 22 leads from the oil supply 24 to the interior vertical surface of the holder 9. The oil supply may be in the form of a silo 26 high enough to permit an oil level 28 sufiicient to insure good gravitational dow through the passageway 22. Alternatively, the oil may be supplied by pressure feed in the manner known in the art. In such construction, oil `is fed from a common source through piping which has connections running to each of the spinning rings on a frame.

As can be seen from FIGS. 4 and 5, the holder 9 is constructed on -its interior vertical surface in the form of a plurality of circumferentially extending small teeth. These teeth are cut away as at 30' in FIG. 5 to form a vertical path to permit oil arriving through passageway 22 to move upwardly and downwardly to enter into the plurality of grooves 32 which lie between the teeth 34.

The vertical surface 6 of the groove 4 in ring 2 is cylindrical. When the ring is in position in the holder and the holder has been clamped thereagainst, the apexes of teeth 34 will lirmly engage the vertical surface 6 of the ring. The tit between the upper and lower surfaces 36 and 38 of the holder and the upper and lower walls 7 and 8 of the ring is close so that there will be no appreciable oil leakage at these positions.

The teeth 34 may extend all the way to the ends of the split sections 14 and 16, in which case to prevent leakage of oil at the split position 10 sealing material indicated at 42 in FIG. l is used. Alternatively, the teeth may be cut away to terminate short of the split as in FIG. 7 in which case sealing material 40 may be placed at the ends of the teeth and additional sealing material 42 may be placed between the holder ends 14 and 16 to insure against oil leakage at this point.

From the foregoing explanation, it is believed clear that a spinning ring 2 as illustrated in FIG. 3 can be made in an inexpensive manner. The only machining necessary is the turning of groove 4. Its cooperation with the holder 9 eliminates the necessity of any wick. The teeth 34 provide means for carrying oil in an adequate quantity about substantially the entire circumference of the circular wall 6. With the oil engaging such a large surface of the ring, it is quickly absorbed `and transmitted to all of the exposed ring surfaces, thereby to provide adequate lubrication for the ring traveler.

It the holder is a casting, the teeth 34 and the vertical groove 30 may be readily incorporated therein. If, on the other hand, it is preferred to form the teeth by machining, then this too may be easily achieved by conventional machining methods.

If the teeth 34 are to be machined in the interior of the holder, it might be more convenient to make them in the form of a continuous thread of small pitch. This would be just as acceptable, since the oil would be carried equally well from the vertical channel 50 to substantially the entire surface of the wall 6 of the groove in the ring.

From the foregoing description, it will be seen that the need to use conventional wicks is eliminated, and the rings which must be periodically replaced due to wear can be made of a simplified construction which is very effective in receiving oil from the toothed circumferential grooves in the holder.

Any tendency for air locks to form in the tooth grooves 32 to impede ready passage of oil about the grooves can be eliminated by brushing a coating of oil on the holder teeth before positioning the ring in the holder.

While the wall 6 of the ring 2 is most conveniently made in the form of a short section of a cylinder, it will be understood that the wall could be slightly concave or convex provided the configuration of the apexes of the teeth 34 of the holder was the same so that when the ring is in position within the holder all of the teeth 34 will make substantial contact with the wall of the groove, thereby to provide rm engagement between the holder and the ring and at the same time to provide the multiplicity of circumferential passages which deliver oil to all parts of the wall 6 of the ring.

It is intended to cover all changes and modifications of the examples of the invention herein chosen for purposes of the disclosure which do not constitute departures from the spirit and scope of the invention.

I claim.

1. The combination of a spinning ring made of porous metal and a ring holder of the split type, said spinning ring having a circumferential groove extending thereabout and presenting a smooth circular surface at the interior of said groove, the interior portion of said holder dimensioned to t closely within said groove, said holder on its interior vertical face having a Iplurality of inwardly directed circumferentially extending teeth having terminal apexes of small vertical dimension, said teeth, when the ring is clamped in position within said holder, engaging the said circular surface of the said ring groove along a plurality of substantially line contacts, thereby to present a plurality of circumferential passages through which oil may flow to engage substantially the entire circular surface of the said ring groove, means for supplying oil to the said passages and means for preventing leakage of oil at the split in said holder.

2. The combination of a spinning ring made of porous metal and a ring holder of the split type, said spinning ring having a groove extending about its outer circumference, said groove being of a substantial vertical dimension to afford a large circular vertical surface for receiving oil, the upper and lower walls of said groove being narrow and parallel, said holder dimensioned to tit closely within the parallel upper and lower walls of said ring groove, the interior vertical portion of said holder having a multiplicity of small circumferentially extending grooves deiined by tooth like walls terminating inwardly in edges of very small vertical dimension which engage the vertical wall of the ring groove, the depth of said holder grooves being less than the depth of the groove in said ring, a passageway extending through said holder for connection with an oil supply, the inner end of said passageway extending to all said holder grooves, whereby oil from said oil supply may enter the holder grooves between all of said walls and flow about said holder grooves to engage substantially the entire vertical surface of the groove in said ring, and means for preventing leakage of oil at the split in said holder.

References Cited by the Examiner UNITED STATES PATENTS 1,920,386 8/1933 Harding 57-122 X 2,850,866 9/1958 Vv/ayson 57-120 2,964,899 12/1960 Wayson et al. 57-120 3,045,417 7/1962 Wayson et al. 57-120 FRANK J. COHEN, Primam7 Examiner.

A. I. SIDOTI, Assistant Examiner. 

1. THE COMBINATION OF A SPINNING RING MADE OF POROUS METAL AND A RING HOLDER OF THE SPLIT TYPE, SAID SPINNING RING HAVING A CIRCUMFERENTIAL GROOVE EXTENDING THEREABOUT AND PRESENTING A SMOOTH CIRCULAR SURFACE AT THE INERIOR OF SAID GROOVE, THE INTER PORTION OF SAID HOLDER DIMENSIONED TO FIT CLOSELY WITHIN SAID GROOVE, SAID HOLDER ON ITS INTERIOR VERTICAL FACE HAVING A PLURALITY OF INWARDLY DIRECTED CIRCUMFERENTIALLY EXTENDING TEETH HAVING TERMINAL APEXES OF SMALL VERTICAL DIMENSION, SAID TEETH, WHEN THE RING IS CLAMPED IN POSITION WITHIN SAID HOLDER, ENGAGING THE SAID CIRCULAR SURFACE OF THE SAID RING GROOVE ALONG A PLURALITY OF SUBSTANTIALLY LINE CONTACTS, THEREBY TO PRESENT A PLURALITY OF CIRCUMFERENTIAL PASSSAGES THROUGH WHICH OIL MAY FLOW TO ENGAGE SUBSTANTIALLY THE ENTIRE CIRCULAR SURFACE OF THE SAID RING GROOVE, MEANS FOR SUPPLYING OIL TO THE SAID PASSAGES AND MEANS FOR PREVENTING LEAKAGE OF OIL AT THE SPLIT IN SAID HOLDER. 